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Implement Counter Queue and Partial Host Conditional Rendering (#1167)

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* Implementation of query queue and host conditional rendering

* Resolve some comments.

* Use overloads instead of passing object.

* Wake the consumer threads when incrementing syncpoints.

Also, do a busy loop when awaiting the counter for a blocking flush, rather than potentially sleeping the thread.

* Ensure there's a command between begin and end query.
This commit is contained in:
riperiperi 2020-05-04 03:24:59 +01:00 • committed by GitHub
parent 651a07c6c2
commit cd48576f58
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GPG key ID: 4AEE18F83AFDEB23
17 changed files with 724 additions and 136 deletions
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105
Ryujinx.Graphics.OpenGL/Queries/BufferedQuery.cs Normal file
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using OpenTK.Graphics.OpenGL;
using Ryujinx.Common.Logging;
using System;
using System.Runtime.InteropServices;
using System.Threading;
namespace Ryujinx.Graphics.OpenGL.Queries
{
class BufferedQuery : IDisposable
{
private const int MaxQueryRetries = 5000;
private const long DefaultValue = -1;
public int Query { get; }
private int _buffer;
private IntPtr _bufferMap;
private QueryTarget _type;
public BufferedQuery(QueryTarget type)
{
_buffer = GL.GenBuffer();
Query = GL.GenQuery();
_type = type;
GL.BindBuffer(BufferTarget.QueryBuffer, _buffer);
unsafe
{
long defaultValue = DefaultValue;
GL.BufferStorage(BufferTarget.QueryBuffer, sizeof(long), (IntPtr)(&defaultValue), BufferStorageFlags.MapReadBit | BufferStorageFlags.MapWriteBit | BufferStorageFlags.MapPersistentBit);
}
_bufferMap = GL.MapBufferRange(BufferTarget.QueryBuffer, IntPtr.Zero, sizeof(long), BufferAccessMask.MapReadBit | BufferAccessMask.MapWriteBit | BufferAccessMask.MapPersistentBit);
}
public void Reset()
{
GL.EndQuery(_type);
GL.BeginQuery(_type, Query);
}
public void Begin()
{
GL.BeginQuery(_type, Query);
}
public unsafe void End()
{
GL.Flush();
GL.EndQuery(_type);
GL.BindBuffer(BufferTarget.QueryBuffer, _buffer);
Marshal.WriteInt64(_bufferMap, -1L);
GL.GetQueryObject(Query, GetQueryObjectParam.QueryResult, (long*)0);
}
public bool TryGetResult(out long result)
{
result = Marshal.ReadInt64(_bufferMap);
return result != DefaultValue;
}
public long AwaitResult(AutoResetEvent wakeSignal = null)
{
long data = DefaultValue;
if (wakeSignal == null)
{
while (data == DefaultValue)
{
data = Marshal.ReadInt64(_bufferMap);
}
}
else
{
int iterations = 0;
while (data == DefaultValue && iterations++ < MaxQueryRetries)
{
data = Marshal.ReadInt64(_bufferMap);
if (data == DefaultValue)
{
wakeSignal.WaitOne(1);
}
}
if (iterations >= MaxQueryRetries)
{
Logger.PrintError(LogClass.Gpu, $"Error: Query result timed out. Took more than {MaxQueryRetries} tries.");
}
}
return data;
}
public void Dispose()
{
GL.BindBuffer(BufferTarget.QueryBuffer, _buffer);
GL.UnmapBuffer(BufferTarget.QueryBuffer);
GL.DeleteBuffer(_buffer);
GL.DeleteQuery(Query);
}
}
}

209
Ryujinx.Graphics.OpenGL/Queries/CounterQueue.cs Normal file
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using OpenTK.Graphics.OpenGL;
using Ryujinx.Graphics.GAL;
using System;
using System.Collections.Generic;
using System.Threading;
namespace Ryujinx.Graphics.OpenGL.Queries
{
class CounterQueue : IDisposable
{
private const int QueryPoolInitialSize = 100;
public CounterType Type { get; }
public bool Disposed { get; private set; }
private Queue<CounterQueueEvent> _events = new Queue<CounterQueueEvent>();
private CounterQueueEvent _current;
private ulong _accumulatedCounter;
private object _lock = new object();
private Queue<BufferedQuery> _queryPool;
private AutoResetEvent _queuedEvent = new AutoResetEvent(false);
private AutoResetEvent _wakeSignal = new AutoResetEvent(false);
private Thread _consumerThread;
internal CounterQueue(CounterType type)
{
Type = type;
QueryTarget glType = GetTarget(Type);
_queryPool = new Queue<BufferedQuery>(QueryPoolInitialSize);
for (int i = 0; i < QueryPoolInitialSize; i++)
{
_queryPool.Enqueue(new BufferedQuery(glType));
}
_current = new CounterQueueEvent(this, glType);
_consumerThread = new Thread(EventConsumer);
_consumerThread.Start();
}
private void EventConsumer()
{
while (!Disposed)
{
CounterQueueEvent evt = null;
lock (_lock)
{
if (_events.Count > 0)
{
evt = _events.Dequeue();
}
}
if (evt == null)
{
_queuedEvent.WaitOne(); // No more events to go through, wait for more.
}
else
{
evt.TryConsume(ref _accumulatedCounter, true, _wakeSignal);
}
}
}
internal BufferedQuery GetQueryObject()
{
// Creating/disposing query objects on a context we're sharing with will cause issues.
// So instead, make a lot of query objects on the main thread and reuse them.
lock (_lock)
{
if (_queryPool.Count > 0)
{
BufferedQuery result = _queryPool.Dequeue();
return result;
}
else
{
return new BufferedQuery(GetTarget(Type));
}
}
}
internal void ReturnQueryObject(BufferedQuery query)
{
lock (_lock)
{
_queryPool.Enqueue(query);
}
}
public CounterQueueEvent QueueReport(EventHandler<ulong> resultHandler)
{
CounterQueueEvent result;
lock (_lock)
{
_current.Complete();
_events.Enqueue(_current);
result = _current;
result.OnResult += resultHandler;
_current = new CounterQueueEvent(this, GetTarget(Type));
}
_queuedEvent.Set();
return result;
}
public void QueueReset()
{
lock (_lock)
{
_current.Clear();
}
}
private static QueryTarget GetTarget(CounterType type)
{
switch (type)
{
case CounterType.SamplesPassed: return QueryTarget.SamplesPassed;
case CounterType.PrimitivesGenerated: return QueryTarget.PrimitivesGenerated;
case CounterType.TransformFeedbackPrimitivesWritten: return QueryTarget.TransformFeedbackPrimitivesWritten;
}
return QueryTarget.SamplesPassed;
}
public void Flush(bool blocking)
{
if (!blocking)
{
// Just wake the consumer thread - it will update the queries.
_wakeSignal.Set();
return;
}
lock (_lock)
{
// Tell the queue to process all events.
while (_events.Count > 0)
{
CounterQueueEvent flush = _events.Peek();
if (!flush.TryConsume(ref _accumulatedCounter, true))
{
return; // If not blocking, then return when we encounter an event that is not ready yet.
}
_events.Dequeue();
}
}
}
public void FlushTo(CounterQueueEvent evt)
{
lock (_lock)
{
if (evt.Disposed)
{
return;
}
// Tell the queue to process all events up to this one.
while (_events.Count > 0)
{
CounterQueueEvent flush = _events.Dequeue();
flush.TryConsume(ref _accumulatedCounter, true);
if (flush == evt)
{
return;
}
}
}
}
public void Dispose()
{
lock (_lock)
{
while (_events.Count > 0)
{
CounterQueueEvent evt = _events.Dequeue();
evt.Dispose();
}
Disposed = true;
}
_queuedEvent.Set();
_consumerThread.Join();
foreach (BufferedQuery query in _queryPool)
{
query.Dispose();
}
}
}
}

100
Ryujinx.Graphics.OpenGL/Queries/CounterQueueEvent.cs Normal file
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using OpenTK.Graphics.OpenGL;
using Ryujinx.Graphics.GAL;
using System;
using System.Threading;
namespace Ryujinx.Graphics.OpenGL.Queries
{
class CounterQueueEvent : ICounterEvent
{
public event EventHandler<ulong> OnResult;
public QueryTarget Type { get; }
public bool ClearCounter { get; private set; }
public int Query => _counter.Query;
public bool Disposed { get; private set; }
public bool Invalid { get; set; }
private CounterQueue _queue;
private BufferedQuery _counter;
private object _lock = new object();
public CounterQueueEvent(CounterQueue queue, QueryTarget type)
{
_queue = queue;
_counter = queue.GetQueryObject();
Type = type;
_counter.Begin();
}
internal void Clear()
{
_counter.Reset();
ClearCounter = true;
}
internal void Complete()
{
_counter.End();
}
internal bool TryConsume(ref ulong result, bool block, AutoResetEvent wakeSignal = null)
{
lock (_lock)
{
if (Disposed)
{
return true;
}
if (ClearCounter || Type == QueryTarget.Timestamp)
{
result = 0;
}
long queryResult;
if (block)
{
queryResult = _counter.AwaitResult(wakeSignal);
}
else
{
if (!_counter.TryGetResult(out queryResult))
{
return false;
}
}
result += (ulong)queryResult;
OnResult?.Invoke(this, result);
Dispose(); // Return the our resources to the pool.
return true;
}
}
public void Flush()
{
if (Disposed)
{
return;
}
// Tell the queue to process all events up to this one.
_queue.FlushTo(this);
}
public void Dispose()
{
Disposed = true;
_queue.ReturnQueryObject(_counter);
}
}
}

57
Ryujinx.Graphics.OpenGL/Queries/Counters.cs Normal file
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using Ryujinx.Graphics.GAL;
using System;
namespace Ryujinx.Graphics.OpenGL.Queries
{
class Counters : IDisposable
{
private CounterQueue[] _counterQueues;
public Counters()
{
int count = Enum.GetNames(typeof(CounterType)).Length;
_counterQueues = new CounterQueue[count];
}
public void Initialize()
{
for (int index = 0; index < _counterQueues.Length; index++)
{
CounterType type = (CounterType)index;
_counterQueues[index] = new CounterQueue(type);
}
}
public CounterQueueEvent QueueReport(CounterType type, EventHandler<ulong> resultHandler)
{
return _counterQueues[(int)type].QueueReport(resultHandler);
}
public void QueueReset(CounterType type)
{
_counterQueues[(int)type].QueueReset();
}
public void Update()
{
foreach (var queue in _counterQueues)
{
queue.Flush(false);
}
}
public void Flush(CounterType type)
{
_counterQueues[(int)type].Flush(true);
}
public void Dispose()
{
foreach (var queue in _counterQueues)
{
queue.Dispose();
}
}
}
}